Pin roll stripper



Nov. 14, 1961 Filed Jan. 14, 1960 fic 5 nnnnmnnnri W. E. MASON PIN ROLLSTRIPPER 2 Sheets-Shag 2 .i on

United States Patent Ofiiice 3,008,621 Patented Nov. 14, 1961 3,008,621PIN ROLL STRIPPER 1 Walter E. Mason, Dillard, Ga., assignor to JamesLees and Sons Company, Bridgeport, Pa., a corporation of This inventionrelates to web feeding and controlling devices and more particularly toa pin roll stripper which permits temporarily removing a fabric web froma pin roll for the purpose of resetting the fabric on the pin roll andstraightening the pattern or design.

In the finishing of textile pile fabrics such as tufted carpets, it iscustomary to run large rolls of the newly tufted material throughvarious finishing processes. Before the application of latex or otherbacksizing to the fabric there is relatively less dimensional stabilitytransversely of the fabric and in the feeding of such a roll itsometimes occurs that the patern becomes distorted. -It is thereforeimportant that in feeding a roll of tufted fabric to the drier orbacksizer that provision is made to permit realigning or lateraladjustment of the fabric to avoid distortion of the pattern which wouldotherwise become permanent after the backsizing is applied. The feedingof rolls of tufted fabric which may be as wide as 15 ft. is accomplishedby means of a conventional spike or pin roll. Once the fabric is impaledon the pins of the roll any distortion present in the fabric cannot becorrected.

The present invention has for its primary object the provision of aframework rotatable around the center of the pin roll which frameworkcan be turned by the operator to temporarily disengage the fabric fromthe pins and thereby permit correction of any misalignment or distortion of the fabric.

A further object of the invention is to provide a counterweightedframework comprising a series of bars which can be manually pivoted.around the center of a pin feed roll to disengage a fabric normallyimpaled on the pins of the feed roll and to hold the fabric in anelevated disengaged position.

A still further object of the invention is to provide a plurality oftransverse bars normally positioned around the periphery of a pin feedroll in a zone not contacted by a web of fabric running over the rolland means for turning the bars around the center of the roll to removethe fabric from contact with the surface of the roll and the pinsthereon.

Further objects will be apparent from the specification and drawings inwhich:

FIG. 1 is a side view of a portion of the pin feed roll for a textilefabric treating machine such as an apron drier,

FIG. 2 is a diagrammatic sectional view showing the path of travel ofthe fabric passing over the feed roll of FIG. 1,

FIG. 3 is an enlarged sectional detail as seen at 3--3 of FIG. 1,

FIG. 4 is a View corresponding to FIG. 3 with the fabric stripper in amoved position to disengage the fabric from the periphery of the pinfeed roll,

FIG. 5 is a sectional detail as Seen at 5-5 of FIG. 1,

FIG. 6 is an exploded view showing the actuating mechanism for thestripper,

FIG. 7 is a perspective illustrating the construction of the stripperbars, and

FIG. 8 is a fragmentary sectional detail showing the manner in which thebars of FIG. 7 are secured to the pulley of FIG. 6.

The invention comprises essentially the provision of several, preferablythree, bars positioned in close proximity to the periphery of a pin feedroll. The bars are secured to rotatable supports journaled at each endof the shaft of the pin feed roll. A handle attached to one of thesupports permits rotation of the bars around the axes of the feed rollfrom a position not in contact with the fabric to a second position inwhich the fabric is elevated or moved radially from the spikes on thefeed roll and is then supported entirely on the bars. Either or both ofthe supports are desirably provided with a suitable counterweight whichmay be in the form of a cable wrapped around the periphery of thesupport and the handle may be latched in a retracted position so thatwhen the handle is released the counterweights automatically rotate thebars and thereby strip the fabric from the roll.

Referring more particularly to the drawings, a conventional pin feedroll 10 is provided with a plurality of pins or spikes 11 around theentire periphery thereof. T-hese pins engage a running web of textilefabric P which in the present case is illustrated as being a length ofpile carpet. The feed roll 10 is journaled in vertical frame members 12and '13 by means of bearings 14 and 15. The drive for the pin roll isthrough a sprocket 16 and the pin roll shaft 17 all of which representsconventional practice in feeding textile fabrics to a variety ofoperations such as the tufing machine, the drier, and the backsizer.

In order to permit lateral alignment of the fabric to be achieved, Iprovide a pair of pulleys 20 and 21 which are freely journaled on shaft17 at either end of the pin roll 10 and between bearings 14 and 15. Thepulleys 20 and 21 support and are connected to each other by means of aplurality of bars 23, 24, and 25 (FIG. 7) each one of which is bolted tothe periphery of each pulley 20, 21 by means of bolts 26 and nuts 27(FIG. 8). The bars also have intermediate struts 29, 29 welded theretoin order to provide desired lateral rigidity in the area locatedcentrally between pulleys 20 and 21. Either or both of the pulleys isprovided with an operating lever 30 rigidly secured thereto and thelever is locked in a down ward position as shown in FIG. 3 by means of aspring loaded latch 31 pivoted to bracket 32 at 33 and biased by meansof an extension spring 34. A groove 35 in the periphery of each pulleycarries a rope or cable 36 to which is attached a suitable series ofcounterweights 37. As shown clearly in FIGURE 3 the action ofcounterweights 37 tends to turn the pulleys and bars in a clockwisedirection thus permitting the bars to raise the fabric F from the pins11 as shown in FIG. 4. A suitable limit stop 40 secured to the framemember 13 controls the position of the bars so that the fabric F iscompletely disengaged from the pins 11 when handle 30 rests against stop40 as seen in FIG. 4.

The fabric travel as seen in FIGS. 3 and 4 is in the direction of thearrows so that the stripping action progresses in a direction counter tothe fabric travel thus preventing any tendency of the pins to snag inthe fabric. When it is desired to re-engage the fabric with the pins,the operator turns handle 30 in a counterclockwise direction, as seen inFIGS. 3 and 4, until it is locked by the latch 31 and thus retained inthe non-contact position. It will be noted that the fabric is thereforeinitially stripped from its trailing contact with the periphery of roll10 and initially re-engaged at the leading contact with roll 10.

The present device provides a relatively simple and inexpensive meansfor disengaging a textile fabric from a pin roll and permits any lateraladjustment or re-alignmerit of the fabric to be made at any time. Theaction of the counterweight renders the operation of strippinginstantaneous and automatic.

Having thus described my invention,

I claim:

1. In combination with a fabric pin feed roll, a plurality of sharp pinssubstantially covering the surface of said roll, a shaft on which saidpin roll is mounted, a support journaled at each end of said shaft, astripper element connecting said supports, means for rotating thestripper element and the supports around the shaft to disengage thefabric from the pins and the roll, said means including a counterweighturging the stripper element towards the fabric disengaging position.

2. In combination with a fabric pin feed roll, a plurality of sharp pinssubstantially covering the surface of said roll, a shaft on which saidpin roll is mounted, a Support journaled at each end of said shaft, astripper element connecting said supports, means for rotating thestripper element and the supports around the shaft to disengage thefabric from the pins and the roll, said means including a counterweighturging the stripper element towards the fabric disengaging position, anda latch means for retaining the counterweight in an elevated position.

3. A fabric feeding assembly comprising a pin roll over which a textilefabric normally travels, a shaft for said pin roll, a plurality of pinsaround the periphery of said pin roll for impaling the fabric around aportion of the periphery thereof, a stripper element journaled on thepin roll shaft and normally positioned adjacent a peripheral point ofthe pin roll not engaged by the fabric, means for moving said stripperelement from said normal position against the travel of the fabric to astripping position in which the fabric is carried entirely by thestripping element, said means including a counterweight connected to thestripper element and a handle connected to the stripper element formoving said stripper element to a retracted position, and means forlocking said handle in said retracted position.

References Cited in the file of this patent UNITED STATES PATENTS

